When you land on a login page, the first question should always be: who am I handing my credentials to? Deaconess.hylandcloud.com makes that question hard to answer. The domain registration is completely private, there is no about page or company name on the site, and no privacy policy or terms of service are posted anywhere. That is unusual for any web application that expects you to sign in, because those legal pages protect both you and the operator.
For a legitimate SaaS tool or employee portal, you would typically see a recognizable business name, some way to get support, and a privacy policy that tells you how your data is handled. This site has none of those things. The technical side is fine — strong encryption, fast hosting on Amazon, and clean security headers — but that only tells you the infrastructure works, not that the people behind it are trustworthy.
If you are trying to decide whether deaconess.hylandcloud.com is safe to use, the lack of transparency is the main warning. Without knowing who runs the site and what they will do with your login information, the cautious move is to hold off and look for a contact number or official company website elsewhere first.